Jan Karol ascended to the throne on 11 June 1971 following the death of his mother, Cesarzowa Aleksandra I. Born the first son of Aleksandra and Prince Bogumir in 1937, Jan had acted as heir apparent since his birth, and as Crown Prince since his adult baptism in 1953. Karol married Newreyan Princess Anne-Mary in 1960, and had five children with her. His eldest, Crown Prince Michał, acted as heir apparent until his death.

As Cesarz i Autokrata, Jan Karol acted as the official head of state and government of Miersa and commander-in-chief of it's armed forces. He maintained a strong working relationship with Sylwester Hugo Wrzesiński, the Cześnik for the latter half of his realm, and his first son Crown Prince Michał. Jan Karol also focused on improved relations with the western world; and was been seen as a westernizer and pro-western monarch for the majority of his reign. Jan Karol died in a plane crash on 9 May 2018, along with his son then-Crown Prince Michał. He was succeeded by his second son, Jaromir II.

Birth and family

Early life

Heir apparent

Ascension

Reign

Public perception and character

Titles, styles, and arms

Titles and styles

15 October 1937 – 10 October 1971: His Imperial Highness The Crown Prince

10 October 1971 – 9 May 2018: His Imperial Majesty The Cesarz

Before his death, the Cesarz's full style and title was: "His Imperial Majesty Jan Karol, second of his name, by the Grace of God, of the Miersan Commonwealth and all Her Domains Cesarz, of the Kraina Korony Duke, of the Free City of Dyńsk and Holy City of Krada Lord Protector, of Żobrodź and Nowyburg Count, of the City of Żobrodź Lord-Baron, Shield of Asura, Guardian of the Peace, Protector of the Realm, Defender of the Faith."

Arms

As Crown Prince, Jan Karol's coat of arms was the coat of arms for the Crown Prince. When he acceded as Cesarz, he gained the royal arms undifferenced.